# Glossary

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The glossary is a living artifact that will be incrementally & continuously updated.
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* **USD0 (Usual USD):** The primary stablecoin of Usual, a liquid and transferable ERC-20 token that can be staked or locked to receive rewards. It is backed by cash equivalents like tokenized money market funds.
* **bUSD0 (Bond USD0):** A token representing USD0 deposited in a onchain bond, maturing over a defined period, during which $USUAL can be claimed.
* **USYC (US Yield Coin):** USYC is the on-chain representation of the Hashnote International Short Duration Yield Fund Ltd. ("SDYF"). SDYF invests primarily in reverse repo and U.S. Government backed securities.
* **ERC-20 Token:** A popular token standard on the Ethereum blockchain, enabling the creation of fungible tokens.
* **Staking:** The process of locking cryptocurrencies in a blockchain network to support operations, in return for rewards.
* **Reverse Repo:** A repurchase agreement wherein securities are sold with an agreement to repurchase them at a higher price in the future.
* **Money Market Fund:** A fund that invests in short-term, high-quality debt securities, providing liquidity and safety.


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